/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package io.druid.segment;

import io.druid.segment.data.IndexedInts;
import io.druid.segment.data.Offset;

/**
*/
class IndexedIntsOffset implements Offset
{
  int currRow;
  private final IndexedInts invertedIndex;

  public IndexedIntsOffset(IndexedInts invertedIndex)
  {
    this.invertedIndex = invertedIndex;
    currRow = 0;
  }

  @Override
  public void increment()
  {
    ++currRow;
  }

  @Override
  public boolean withinBounds()
  {
    return currRow < invertedIndex.size();
  }

  @Override
  public Offset clone()
  {
    final IndexedIntsOffset retVal = new IndexedIntsOffset(invertedIndex);
    retVal.currRow = currRow;
    return retVal;
  }

  @Override
  public int getOffset()
  {
    return invertedIndex.get(currRow);
  }
}
